The spin vector of asteriod 10 Hygiea

Details The spin vector of asteriod 10 Hygiea The spin vector of asteriod 10 Hygiea

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26as...91...53m&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 91, no. 1, Nov. 1991, p. 53-59.

Astronomy and Astrophysics

Astrophysics

7

Asteroids, Light Curve, Planetary Rotation, Spin Dynamics, Astronomical Models, Astronomical Photometry

Scientific paper

Photoelectric lightcurves of asteriod 10 Hygiea from the 1985, 1988, and 1989 apparitions are presented. A sidereal rotation period of 27.65909 h was obtained. This is much longer than previously published values. The spin vector has ecliptic coordinates close to one of the two solutions (lamba-0 = 299 deg, beta-0 = -39 deg) and (lamba 0 = 112 deg, beta- 0 = -41 deg). An ellipsoidal model of Hygiea has axis ratios of about a/b = 1.36 and b/c = 1.04.

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